Children's behaviors can be frustrating.
When we ask ourselves if the behavior is developmentally appropriate but not socially acceptable, it changes our perspective and how we respond.
Biting, hitting, dumping, even tantrums are developmentally appropriate for young children. They're just not socially acceptable.
Sometimes I think the deeper parenting question is not, “How do I get better behavior?”
It is, “Is my child learning how to behave, or how to hide?”
Those paths can look similar for a while.
Then adulthood exposes the difference.